package com.etc;

/**
 * 创建工厂
 */
public class ShapeFactory {

    public Shape getShape(String shapeType){

        if(shapeType == null){
            return null;
        }
        if(shapeType.equalsIgnoreCase("CIRCLE")){
            return new Circle();
        }else if(shapeType.equalsIgnoreCase("RECTANGLE")){
            return new Rectangle();
        } else if(shapeType.equalsIgnoreCase("SQUARE")){
            return new Square();
        }


        return null;
    }
}
